Mix together oregano, cumin, paprika, pepper, garlic powder and salt.
Drizzle a little olive oil on to individual sheets of foil.
Place mahi mahi on foil, turning over fish to coat all sides of fish with oil.
Sprinkle seasoning mix over fish.
Top fish with parmesan cheese to taste.
Fold aluminum foil into a little packet and place on BBQ and cook for about 10 minutes or bake in oven at 350 degrees for about 10 minutes or until fish is totally white and flakes easily.
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